Patents by Inventor Antonio Gutierrez

Antonio Gutierrez has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5326487
    Abstract: A phosphorous- and sulfur-containing additive and its use to impart anti-wear properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture of products formed, for example, by simultaneously reacting (1) a beta-hydroxy thioether, such as thiobisethanol, (2) a phosphorous-containing reactant, such as triethyl phosphite and (3) optionally, a nucleophilic reactant capable of reacting with the episulfonium cation ##STR1## to form thioether species.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: July 5, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jack Ryer, Antonio Gutierrez, James S. Puckace, Raymond F. Watts, Stanley J. Brois, Craig W. Gleason
  • Patent number: 5324334
    Abstract: There are disclosed macrocyclic and polycyclic polyamine lubricating oil additives formed by cyclodehydration of reaction products of hydrocarbon substituted succinic anhydrides or carboxylic acids with poly 3-amino propyl compounds or by acylation of macrocyclic polyamines and polycyclic polyamines with hydrocarbon substituted succinic anhydride or carboxylic acids. These compounds are useful as dispersants and dispersants-V.I. improvers in both gasoline and diesel engine lubricating oil compositions and are also useful fuel additives.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: June 28, 1994
    Assignee: Exxon Research & Engineering
    Inventors: Stanley J. Brois, Antonio Gutierrez
  • Patent number: 5320768
    Abstract: Oleaginous compositions comprising a fuel oil or a lubricating oil, a friction modifying amount of a hydroxy ether amine compound such as that having the formula: ##STR1## where X is O or S, R.sub.3 is H, R.sub.1 is C.sub.18 alkylene, R.sub.2 is C.sub.3 alkylene, and R.sub.4 and R.sub.5 are C.sub.2 alkylene, and, optionally an amount effective to impart anti-wear properties to the composition of an organic phosphite ester, such as triphenyl phosphite, are disclosed.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: June 14, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Jack Ryer, Robert S. Johnson, Stanley J. Brois, Jon M. Clumpner
  • Patent number: 5314633
    Abstract: A phosphorous- and sulfur-containing additive and its use to impart anti-wear and/or antioxidant properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture of products formed by simultaneously reacting (1) a beta-hydroxy thioether, such as thiobisethanol, and (2) a phosphorous-containing reactant, such as tributyl phosphite. The reaction is carried out under reduced pressure conditions (e.g., -40 KPa to -100 KPa) to limit the amount of thioether species in said additive to less than about 45 mole %.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: May 24, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jack Ryer, Antonio Gutierrez, James S. Puckace, Raymond F. Watts, Craig W. Gleason, Daniel R. Mills, Edmund H. Braun, II, Stanley J. Brois
  • Patent number: 5308364
    Abstract: The present invention is directed to fuel compositions containing branched amido-amine additives formed by (a) reacting a first nitrogen-containing compound (e.g., ammonia or an organic amine) with an alpha, beta-unsaturated compound of the formula: ##STR1## wherein W.sup.1 is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or --NR.sup.4 (R.sup.5), and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, to form a first adduct containing unreacted --C(W.sup.1)--Y groups; (b) reacting the first adduct with a polyamine (e.g., a polyalkylene polyamine) to form a second adduct containing unreacted --NH-- group (preferably primary amine groups) and comprising a branched amido-amine oligomer; and (c) reacting the second adduct with a long chain hydrocarbyl substituted mono- or dicarboxylic acid material comprising a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: May 3, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Robert D. Lundberg
  • Patent number: 5306313
    Abstract: A composition of matter useful as an oleaginous composition dispersant additive comprising the reaction product of:(1) at least one nitrogen or ester containing adduct selected from the group consisting of (i) oil soluble salts, amides, imides, oxazolines, esters, or mixtures thereof of long chain hydrocarbyl substituted mono and dicarboxylic acids or their anhydrides, (ii) long chain hydrocarbyl having a polyamine attached directly thereto, and (iii) Mannich condensation product formed by condensing long chain hydrocarbyl substituted hydroxy aromatic compound with an aldehyde and polyamine, said adduct containing at least one reactive group selected from reactive amino groups and reactive hydroxyl groups; and(2) at least one polyanhydride.Also disclosed are oleaginous compositions, particularly lubricating oil compositions, containing said reaction product.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: April 26, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Antonio Gutierrez, Robert D. Lundberg
  • Patent number: 5296560
    Abstract: According to the present invention, improved dispersants are provided which comprise adducts of (A) polymer-substituted mono- and dicarboxylic acid or anhydrides and (B) bis(para-amino cyclohexyl) methane oligomers, wherein the reactants are contacted in a reaction zone in the substantial absence of polar organic solvents.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: March 22, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Robert D. Lundberg, Robert A. Kleist
  • Patent number: 5294234
    Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight terminally substituted with amine compounds, which are also useful additives to oleaginous compositions, e.g., as fuel and lubricating oil dispersants.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: March 15, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Alan M. Schilowtiz, Antonio Gutierrez, Won R. Song
  • Patent number: 5290461
    Abstract: Composition of matter useful as multifunctional viscosity index improver for lubricating oil comprising reaction product of:(i) (a) degraded ethylene-alpha-olefin copolymer obtained by degrading copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains at least about 57 weight percent ethylene, wherein said low crystallinity segment contains not greater than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of M.sub.w /M.sub.n of less than 2 and a ratio of M.sub.z /M.sub.w of less than 1.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: March 1, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David Y. Chung, Antonio Gutierrez, Mark J. Struglinski
  • Patent number: 5290868
    Abstract: An oil soluble nitrogen containing grafted degraded ethylene copolymers useful as multifunctional viscosity index improvers or modifiers, such as VI improver-dispersant additives. The nitrogen containing grafted degraded ethylene copolymers are grafted with an ethylenically unsaturated carboxylic acid grafting material and the grafted degraded ethylene copolymers are then reacted with at least one polyamine containing one primary amine group and at least one or more secondary amine groups.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: March 1, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David Y. Chung, Antonio Gutierrez, Mark J. Struglinski
  • Patent number: 5284595
    Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight terminally substituted with amine compounds, which are also useful additives to oleaginous compositions, e.g., as fuel and lubricating oil dispersants.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: February 8, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Alan M. Schilowitz, Antonio Gutierrez, Won R. Song
  • Patent number: 5277833
    Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 10,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: January 11, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Won R. Song, Albert Rossi, Howard W. Turner, Howard C. Welborn, Robert D. Lungberg, Antonio Gutierrez, Robert A. Kleist
  • Patent number: 5275748
    Abstract: An oil soluble dispersant additive useful in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of:(i) at least one intermediate adduct comprised of the reaction products of(a) at least one polyanhydride, and(b) at least one member selected from the group consisting of polyamines, polyols, and amino alcohols; and(ii) at least one member selected from the group consisting of(a) at least one long chain hydrocarbyl substituted C.sub.4 -C.sub.10 dicarboxylic acid producing material;(b) at least one long chain hydrocarbyl substituted hydroxy aromatic material and at least one aldehyde; or(c) at least one aldehyde and at least one reaction product of a hydrocarbyl substituted C.sub.3 -C.sub.10 monocarboxylic or C.sub.4 -C.sub.10 dicarboxylic acid or anhydride and an amine substituted hydroxy aromatic compound.Also disclosed are oleaginous compositions, particularly lubricating oil compositions, containing these oil soluble dispersants.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: January 4, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Robert D. Lundberg, Antonio Gutierrez
  • Patent number: 5275747
    Abstract: The present invention is directed to an oil-soluble oleaginous composition additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of from above 20,000 to about 500,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to oleaginous compositions such as lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful oleaginous composition additives, e.g., as multifunctional viscosity index improvers.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: January 4, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Robert D. Lundberg, Won R. Song
  • Patent number: 5273668
    Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted nitrogen- or ester-containing ashless dispersant and (B) a bis-keto/thioketo compound.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: December 28, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Antonio Gutierrez, Robert D. Lundberg
  • Patent number: 5268115
    Abstract: An oil-soluble alkyl substituted hydroxyaromatic compound, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copolymer of greater or above 25,000 to about 5000,000 number average molecular weight, said copolymer containing from 30 to 80 weight percent ethylene and wherein at least about 30% of the polymer's chains contain terminal ethenylidene unsaturation. The Mannich Base condensates of this invention are useful as multifunctional viscosity index improvers for oleaginous compositions, particularly lubricating oil compositions.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: December 7, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Robert D. Lundberg, Won R. Song
  • Patent number: 5266223
    Abstract: The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: November 30, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Won R. Song, Albert Rossi, Howard W. Turner, Howard C. Welborn, Robert D. Lundberg, Antonio Gutierrez, Robert A. Kleist
  • Patent number: 5259968
    Abstract: A composition of matter useful as an oleaginous composition dispersant additive comprising the reaction product of:(1) at least one nitrogen or ester containing adduct selected from the group consisting of (i) oil soluble salts, amides, imides, oxazolines, esters, or mixtures thereof of long chain hydrocarbyl substituted mono and dicarboxylic acids or their anhydrides, (ii) long chain hydrocarbyl having a polyamine attached directly thereto, and (iii) Mannich condensation product formed by condensing long chain hydrocarbyl substituted hydroxy aromatic compound with an aldehyde and polyamine, said adduct containing at least one reactive group selected from reactive amino groups and reactive hydroxyl groups; and(2) at least one polyanhydride.Also disclosed are oleaginous compositions, particularly lubricating oil compositions, containing said reaction product.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: November 9, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Antonio Gutierrez, Robert D. Lundberg
  • Patent number: 5256325
    Abstract: An oil soluble dispersant additive useful in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of:(i) at least one intermediate adduct comprised of the reaction products of(a) at least one polyanhydride, and(b) at least one member selected from the group consisting of polyamines, polyols, and amino alcohols; and(ii) at least one member selected from the group consisting of(a) at least one long chain hydrocarbyl substituted C.sub.4 -C.sub.10 dicarboxylic acid producing material;(b) at least one long chain hydrocarbyl substituted hydroxy aromatic material and at least one aldehyde; or(c) at least one aldehyde and at least one reaction product of a hydrocarbyl substituted C.sub.3 -C.sub.10 monocarboxylic or C.sub.4 -C.sub.10 dicarboxylic acid or anhydride and an amine substituted hydroxy aromatic compound.Also disclosed are oleaginous compositions, particularly lubricating oil compositions, containing these oil soluble dispersants.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: October 26, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Robert D. Lundberg, Antonio Gutierrez
  • Patent number: 5252238
    Abstract: The present invention is directed to a viscosity index improver for lubricating oil compositions comprising the reaction product of A) a copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer grafted with ethylenically monounsaturated carboxylic acid material and B) amido-amine or thioamido-amine comprising the reaction product of a polyamine and alpha, beta-unsaturated compound of the formula ##STR1## wherein X is oxygen or sulfur, Y is OR.sup.4, --SR.sup.4 or ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently selected from hydrogen, hydrocarbyl and substituted hydrocarbyl.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: October 12, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David Y. Chung, Antonio Gutierrez, John E. Johnston, Mark J. Struglinski, Robert D. Lundberg